Permutation lock



Patented Dec, 19, 1922.

lttidyldei `HENRY H. ,inscannen or L'XEM.Blfity WIsoonsriv,

samenwer toca i applicati@ inea May 6,

' new and useful ylmpr'ovementfs`in Permuta tion Locks, ioation.y p

The present invention relatesftopermutation locks and moreparticularly "to idevices of this nature which aiefadapted to'be used in connection ivith hasps andtlie'like." The principal fobjlect of the invention isto provide a iper-mutation lock ofsimple and eilicient structure,"ivhich'lisreliable `in operation`,` inexpensive to 'manufactiire, and'ivell adaptedto the purpose; for ,Which itlv is designed.

Another important obj ect of the invention is to provide a`1o'ck` of this nature lhwingfa slidable bolt .which may, be `held in ladj usted position by a plurality of slidableltumblers.

lilith the above and numerousv other 0bjects in View, as will appearlasthe description progresses, the inventioirresides in cer` tain novel features of construction, and the combination and arrangement of parts as will be hereinafter more fully described and claimed.

ln the drawing p Figure 1 is a perspective showing' the per. mutation lock in conjunction with a hasp,

Figure 2 is a longitudinal section taken therethrough,

Figures 3 and l are 'transverse sections taken approximately on the lines Q ofvvhich the foll'foiving` is a speci.

Figure 5 is a' detailed longitudinal section taken substantially on the` line 5 5 of Figure 2,

Figure 6 is a detailed longitudinal view taken substantially on the line 6-6 of Figure 5 looking downwardly, y y

Figure is a transverse section taken substantially on the line 7-7 of Figure 6,

Figure 8 is al similar View taken substantially on the line S-Bot Figure 6,

Figure 9 is a disassembled perspective of the permutation lock,

Figure 10 is a detailed perspective of one of the tumbler slides,`

.Figure 11 is a similar view ot another oi the tumblers, and

1922- `Seial NQ# weer Figure 12 is a perspective of Athe permuta`` tion` locks showing 'the same used in a slightlyinodiiied it'orm.` Referringtofthe drawinginfdetail it Will be seen that the hasp shown in Figure 1 in-4 cludes the stationary leaf l 13l ivhich has hihi'i'ged theretothe lmovable leaf v11.1: having a suitableaperture"15at its end for receiving the hollow ,open bolt engaging member 16. My permutation lockis mounted on the movable leaf 14 and comprises a'housing formed ot'apair of sectionslS Aeach of which' is pro` vided With al longitudinally `located groove 19 and a'plurality of transversely extending grooves 20the depth rof which are substantially "greater 'than the depth 'oiifthe longitudinal "groeve1 19.; filler block 21`is` received between "the tivo sectionsl1\8"adjacent one oit their'edges and theseparts areirmly held together by rivets or in anyothfer suitable nifanner. @The slidabl'e'bolt `22y includes a "shanki28 and a' pai'rlf notchedledges 24 one l on; 'each"sidefthereotj v'and' the notches `25 of these ledges "24 ar'pos'itioned in valternate 2 rennen" with' "each lotherf l:These `ledges 12e are slidablethrough the longitudinal grooves 19 of the sections 18 Whilethe shank'is slidable between the sections themselves opposite to the filler block 21. A `plurality of tumbler bars are slidably mounted in the grooves 20- of the sections 18 and these bars are indicated generally by the numerals 27 and 28. The tumbler bar V27` is provided intermediate its ends with a notch 29-and a shoulder 30 is slightly .spaced therefrom. The tumbler 13211128 is likewise provided with a notch `31, and a shoulder 32 but this shoulder32 is formed immediately adjacent the notch 31. These tumblers are' specifically" indicated by the numerals l to12 inclusive as is shown inr Figure 1. `The tumbler blocks 27 and 28 are arranged as may be desired` and bychanging the position or the number` of the various tumblers, the combination "of `the `permutation lock `may be `readily changed. l i

" The operation of` the permutation lock may now be understood. It is the purpose of the notches 29 and 31 to be brought into registry with the grooves 19 thereby allowing the bolt 22 to be freely slid into and ont ot engagement with the member 1G. As may be seen from an inspection ot Figures 3, Ll, 7 and 8 the tumbler blocks indicated by thev numeral 27 may be pulled out farther than those indicated bythe numeral 28.

When any of the notches 29 or'31 are out of y alignment with the grooves 19, of course, the bolt 22 is prevented from sliding since the bodies of the tumbler ybl'o'ckswill be in the notches 25. The user of the lock will be familiar with which of the tumblersi'are of the formation similar to thoser lindicated by the numeral 27 and also those which are `formed-similar toythose indicated by the nuvmeral A28 and thus. pull o r pushthe tumblers 'I in proper positiont'o bring the notches there;

ofinfalignment with the grooves 19 whereby the ,ledges`24 will be free to slide and the bolt will therefore be released.` i A As `is indicated to advantageinFigure 2 a 'longitudinally extending slot 35 is prof vided adj acent'one end of the shank 23 of the ybolt 22 anda pinpasses therethrough c thereby `limiting the movement of the bolt.

i This bolt is provided at the; end of its shank with angular extension 36 so that it may be'readily operated when free to do so.

i Attention is calledA toy the fact that the filler block l21 is Wider than the shank 23 and that the shoulders 32 will engage there- `vvifthso/that these tumbler blocks 1 to 12 inclusive may not be pulled all the way out of .the lock. t l I, l. i

Having described my invention with some Y degree offparticularityit is thought thatjthe construction and operation thereof will now `bey understood. without a more detailed description. Numerous changes in the convided veach with longitudinally extending grooves and a plurality of transversely extending grooves,' a bolt slidably mounted between the sections'andincluding a shank a pair of ledges on one edge lof the shank one on each side thereof, said ledgesprovided with a plurality of notches adapted .to be broughtinto registry with the transversely extending notches of the sections? and a plurality `of* slidable tnmblers provided with notches and mounted in the transverse grooves of the sections and adapted to extend through the notchesof the-ledges and n provided with Vnotches adapted to be brought into registry with the `loiigitudinally extending grooves of the sections so as to allowv the bolt to move freely7'a filler-block between the sections, said tumblers provided with stops spaced irregularly in respect to the knotches thereof inthe manner and for "the purpose specied.

1n testimony whereof I affix my signature in `presence of two Witnesses.

l x HENRYHDECRMER. l/Vitnesses: c 'i C, STAGE, y

(Ernia Ross. v 

